[go: up one dir, main page]

FR3047600B1 - ACOUSTIC ABSORBER, ACOUSTIC WALL AND METHOD OF DESIGN AND MANUFACTURE - Google Patents

ACOUSTIC ABSORBER, ACOUSTIC WALL AND METHOD OF DESIGN AND MANUFACTURE Download PDF

Info

Publication number
FR3047600B1
FR3047600B1 FR1650983A FR1650983A FR3047600B1 FR 3047600 B1 FR3047600 B1 FR 3047600B1 FR 1650983 A FR1650983 A FR 1650983A FR 1650983 A FR1650983 A FR 1650983A FR 3047600 B1 FR3047600 B1 FR 3047600B1
Authority
FR
France
Prior art keywords
absorber
frequency
acoustic
wall
suspensions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
FR1650983A
Other languages
French (fr)
Other versions
FR3047600A1 (en
Inventor
Emile MARTINCIC
Alexandre HOUDOUIN
Stephane Durand
Nourdin YAAKOUBI
Elie Lefeuvre
Yves AUREGAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Centre National de la Recherche Scientifique CNRS
Le Mans Universite
Universite Paris Saclay
Original Assignee
Centre National de la Recherche Scientifique CNRS
Universite Paris Sud
Le Mans Universite
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to FR1650983A priority Critical patent/FR3047600B1/en
Application filed by Centre National de la Recherche Scientifique CNRS, Universite Paris Sud, Le Mans Universite filed Critical Centre National de la Recherche Scientifique CNRS
Priority to US16/075,926 priority patent/US10477302B2/en
Priority to EP17706702.2A priority patent/EP3414756B1/en
Priority to CN201780010387.0A priority patent/CN108780637B/en
Priority to KR1020187026092A priority patent/KR102703452B1/en
Priority to JP2018560253A priority patent/JP6985575B2/en
Priority to PCT/EP2017/052787 priority patent/WO2017137455A1/en
Publication of FR3047600A1 publication Critical patent/FR3047600A1/en
Application granted granted Critical
Publication of FR3047600B1 publication Critical patent/FR3047600B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/8209—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only sound absorbing devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2892—Mountings or supports for transducers
    • H04R1/2896—Mountings or supports for transducers for loudspeaker transducers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8428—Tray or frame type panels or blocks, with or without acoustical filling containing specially shaped acoustical bodies, e.g. funnels, egg-crates, fanfolds
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
    • E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
    • E04B2001/8485—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element the opening being restricted, e.g. forming Helmoltz resonators

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Building Environments (AREA)

Abstract

L'invention propose un absorbeur sonore passif (3, 4, 6, 7, 8), comprenant une cavité fermée (30, 80) débouchant vers l'extérieur par une direction d'entrée (D3) par un col traversant la paroi avant pour former un résonateur de Helmholtz pour une première fréquence. Selon l'invention, cet absorbeur comprend en outre au moins un élément mobile, ou pastille (32, 42, 62, 72a, 72b), suspendu ou maintenu par des suspensions (33, 43, 6140) dans une position obstruant ledit col de façon non étanche. La raideur relative des suspensions et de la pastille est déterminée pour que l'ensemble résonne en une vibration selon un déplacement en "piston" à une deuxième fréquence différente de la première fréquence, réalisant une absorption pour cette deuxième fréquence ou plage de fréquences. Une version hybride comprend une bobine (324) pilotée pour adapter l'impédance acoustique de l'absorbeur. L'invention propose une paroi acoustique comprenant une pluralité de tels absorbeurs réalisés par une structure répétitive débouchant par des perforations recevant chacune une telle pastille, ainsi qu'un procédé de conception et de fabrication d'un tel absorbeur ou paroi.The invention proposes a passive sound absorber (3, 4, 6, 7, 8), comprising a closed cavity (30, 80) opening outwards via an entry direction (D3) via a neck crossing the front wall to form a Helmholtz resonator for a first frequency. According to the invention, this absorber further comprises at least one mobile element, or pad (32, 42, 62, 72a, 72b), suspended or held by suspensions (33, 43, 6140) in a position obstructing said neck of unsealed way. The relative stiffness of the suspensions and of the pellet is determined so that the assembly resonates in a vibration according to a "piston" displacement at a second frequency different from the first frequency, producing an absorption for this second frequency or range of frequencies. A hybrid version includes a coil (324) driven to match the acoustic impedance of the absorber. The invention proposes an acoustic wall comprising a plurality of such absorbers produced by a repetitive structure opening out through perforations each receiving such a patch, as well as a method for designing and manufacturing such an absorber or wall.

FR1650983A 2016-02-08 2016-02-08 ACOUSTIC ABSORBER, ACOUSTIC WALL AND METHOD OF DESIGN AND MANUFACTURE Expired - Fee Related FR3047600B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR1650983A FR3047600B1 (en) 2016-02-08 2016-02-08 ACOUSTIC ABSORBER, ACOUSTIC WALL AND METHOD OF DESIGN AND MANUFACTURE
EP17706702.2A EP3414756B1 (en) 2016-02-08 2017-02-08 Acoustic absorber, acoustic wall and method for design and production
CN201780010387.0A CN108780637B (en) 2016-02-08 2017-02-08 Acoustic absorber, sound absorbing wall and design and production method
KR1020187026092A KR102703452B1 (en) 2016-02-08 2017-02-08 Acoustic absorbing device, acoustic wall and design and manufacturing method thereof
US16/075,926 US10477302B2 (en) 2016-02-08 2017-02-08 Acoustic absorber, acoustic wall and method for design and production
JP2018560253A JP6985575B2 (en) 2016-02-08 2017-02-08 Sound absorbers, noise barriers and methods for design and manufacture
PCT/EP2017/052787 WO2017137455A1 (en) 2016-02-08 2017-02-08 Acoustic absorber, acoustic wall and method for design and production

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1650983 2016-02-08
FR1650983A FR3047600B1 (en) 2016-02-08 2016-02-08 ACOUSTIC ABSORBER, ACOUSTIC WALL AND METHOD OF DESIGN AND MANUFACTURE

Publications (2)

Publication Number Publication Date
FR3047600A1 FR3047600A1 (en) 2017-08-11
FR3047600B1 true FR3047600B1 (en) 2018-02-02

Family

ID=56555445

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1650983A Expired - Fee Related FR3047600B1 (en) 2016-02-08 2016-02-08 ACOUSTIC ABSORBER, ACOUSTIC WALL AND METHOD OF DESIGN AND MANUFACTURE

Country Status (7)

Country Link
US (1) US10477302B2 (en)
EP (1) EP3414756B1 (en)
JP (1) JP6985575B2 (en)
KR (1) KR102703452B1 (en)
CN (1) CN108780637B (en)
FR (1) FR3047600B1 (en)
WO (1) WO2017137455A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11514878B2 (en) * 2018-02-23 2022-11-29 Purdue Research Foundation Helmholtz resonators with broadband capability
US11322126B2 (en) * 2018-12-20 2022-05-03 Toyota Motor Engineering & Manufacturing North America, Inc. Broadband sparse acoustic absorber
CN112969830B (en) * 2018-12-21 2022-12-27 香港科技大学 Soft acoustic boundary plate
CN110012397B (en) * 2019-05-10 2020-12-29 美特科技(苏州)有限公司 Loudspeaker
CN110415675B (en) * 2019-08-22 2024-06-14 北京市劳动保护科学研究所 Sound insulation device with adjustable acoustic characteristics
CN114514757A (en) * 2019-08-28 2022-05-17 声波边缘有限公司 System and method for generating an audio signal
CN112447162B (en) * 2019-08-29 2024-07-16 比亚迪股份有限公司 Sound absorption structure design method, sound absorption structure and acoustic package structure
CN111926933B (en) * 2019-12-24 2021-06-15 南京林业大学 Frequency-adjustable sound absorption plate based on Helmholtz resonator
CN111549922A (en) * 2020-05-13 2020-08-18 中国铁路设计集团有限公司 An interpolated angled sound-guiding gallery superstructure and a low-frequency sound-absorbing device made therefrom
CN112509545B (en) * 2020-12-16 2022-07-12 上海交通大学 Multilayer nested formula low frequency broadband sound absorbing device based on resonance sound absorption
CN113112975B (en) * 2021-04-20 2024-06-11 南京富罗新环保科技有限公司 Sound absorbing plate with electromagnetic sound absorbing structure
CN117242514A (en) * 2021-04-23 2023-12-15 香港科技大学 Ultralow frequency sound absorber
CN113539223B (en) * 2021-07-11 2022-05-06 哈尔滨工程大学 Helmholtz sound absorption device
WO2023173442A1 (en) * 2022-03-18 2023-09-21 深圳市韶音科技有限公司 Vibration assembly
KR20240013315A (en) * 2022-07-22 2024-01-30 (주)새론건설 Anti noise resonator and installation method thereof
US11991497B1 (en) * 2022-10-28 2024-05-21 xMEMS Labs, Inc. Acoustic device and holder flattening frequency response

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5763400U (en) * 1980-10-01 1982-04-15
JPS6440895A (en) * 1987-08-06 1989-02-13 Matsushita Electric Works Ltd Sound absorber
US5241512A (en) * 1991-04-25 1993-08-31 Hutchinson 2 Acoustic protection material and apparatus including such material
US5677958A (en) * 1993-07-07 1997-10-14 Leistritz Ag & Co Abgastechnik Active sound damper
US7440580B2 (en) * 2003-01-16 2008-10-21 Performance Media Industries, Ltd. Room mode bass absorption through combined diaphragmatic and helmholtz resonance techniques
DE102004053383A1 (en) * 2004-11-02 2006-05-04 Eads Deutschland Gmbh Acoustic absorber for aircraft engines
JP2008025472A (en) 2006-07-21 2008-02-07 Denso Corp Noise reducing device
CH700728B1 (en) * 2007-07-13 2010-10-15 Albers & Co Acoustic elements.
DE102007000568A1 (en) * 2007-10-24 2009-04-30 Silencesolutions Gmbh sound absorber
JP2009204836A (en) * 2008-02-27 2009-09-10 Yamaha Corp Sound absorption structure, sound absorption structure group, sound box, method of adjusting sound structure and noise reduction method
DE102009007891A1 (en) * 2009-02-07 2010-08-12 Willsingh Wilson Resonance sound absorber in multilayer design
KR101026765B1 (en) * 2009-05-19 2011-04-11 한국항공우주연구원 Clean sound absorber for broadband noise control and manufacturing method thereof
FR2955443B1 (en) * 2010-01-19 2012-03-23 Univ Maine ELECTRODYNAMIC SPEAKER STRUCTURE WITH MEMS TECHNOLOGY
US8469141B2 (en) * 2011-08-10 2013-06-25 General Electric Company Acoustic damping device for use in gas turbine engine
JP5661581B2 (en) * 2011-09-07 2015-01-28 株式会社神戸製鋼所 Sound insulation cover
CH706394A2 (en) * 2012-04-26 2013-10-31 Akustik & Raum Ag Sound-absorbing element.
KR101401157B1 (en) 2012-12-20 2014-05-30 대림대학교산학협력단 A room equalizer
US8857563B1 (en) 2013-07-29 2014-10-14 The Boeing Company Hybrid acoustic barrier and absorber
FR3009122B1 (en) * 2013-07-29 2017-12-15 Boeing Co HYBRID ACOUSTIC BARRIER AND ABSORBER
US9068345B2 (en) 2013-08-12 2015-06-30 Hexcel Corporation Multi-sectional acoustic septum
KR101574015B1 (en) 2014-04-29 2015-12-02 박창열 The sound absorbent device

Also Published As

Publication number Publication date
EP3414756B1 (en) 2020-01-29
KR102703452B1 (en) 2024-09-04
US10477302B2 (en) 2019-11-12
KR20180111976A (en) 2018-10-11
US20190058941A1 (en) 2019-02-21
FR3047600A1 (en) 2017-08-11
CN108780637A (en) 2018-11-09
CN108780637B (en) 2023-07-25
JP2019511014A (en) 2019-04-18
EP3414756A1 (en) 2018-12-19
JP6985575B2 (en) 2021-12-22
WO2017137455A1 (en) 2017-08-17

Similar Documents

Publication Publication Date Title
FR3047600B1 (en) ACOUSTIC ABSORBER, ACOUSTIC WALL AND METHOD OF DESIGN AND MANUFACTURE
EP2884063B1 (en) Sound generator for a system for influencing exhaust noise of a motor vehicle
SG10201810071TA (en) Mems acoustic transducer, and acoustic transducer assembly having a stopper mechanism
CN106640274B (en) Muffler for an exhaust system of an internal combustion engine
CN106716759A (en) Grommet and method for manufacturing same
US20180035199A1 (en) Loudspeaker module and electronic product
MX2019002042A (en) Supporting structure for underrun protector.
JP2017129738A5 (en) Equipment cases, electronic equipment and electronic musical instruments
KR102167420B1 (en) Dynamic receiver with resonance protector for ear phone
EP2941011B1 (en) A vehicle installation structure comprising a loudspeaker device for attaching to a vehicle panel
DE19956172A1 (en) Double chamber silencer unit, with jacket and resonance tube
FI20125374A (en) Loudspeakers and the manufacturing process thereof
EP3153739A1 (en) Vibration-damping device
WO2011128858A3 (en) Acoustic insulation device and method for producing same
SA523441231B1 (en) Cold-formed thin-wall steel composite wall panel structure and embedded lightweight concrete
CN206389548U (en) Speaker unit for vehicle and the vehicle with speaker unit
JP2014179934A (en) Tube, bass reflex port and acoustic device
DE102016107471B3 (en) Ultrasonic transducer with radiating element
KR101687951B1 (en) 2-Piece Joining Type Sound Absorption Hollowed Road Wheel for Vehicle and Its Manufacturing Method
CN205545864U (en) Loudspeaker
JP2016022793A (en) Vehicle rear structure
KR20180026076A (en) Device for reducing noise of sound meta structure
JP2018178854A (en) Hermetic compressor
US20070029134A1 (en) Dual-neck plane wave resonator
WO2018153034A1 (en) Ultrasonic sensor

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20170811

PLFP Fee payment

Year of fee payment: 3

PLFP Fee payment

Year of fee payment: 5

ST Notification of lapse

Effective date: 20211005

TQ Partial transmission of property

Owner name: UNIVERSITE PARIS-SACLAY, FR

Effective date: 20220224

Owner name: UNIVERSITE DU MANS, FR

Effective date: 20220224

Owner name: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, FR

Effective date: 20220224